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  • 标题:Fine litter accumulation in Central Amazonian Tropical Rainforest canopy
  • 本地全文:下载
  • 作者:Couto-Santos, Fabiana Rita do ; Luizão, Flávio J
  • 期刊名称:Acta Amazonica
  • 印刷版ISSN:0044-5967
  • 出版年度:2010
  • 卷号:40
  • 期号:4
  • 页码:781-786
  • DOI:10.1590/S0044-59672010000400021
  • 语种:English
  • 出版社:Instituto Nacional de Pesquisas da Amazônia
  • 摘要:

    Fine litter dynamics within the canopy differ from litter dynamics on the forest floor for reasons such as differences in microclimate, substrate, disturbance level, stratum influence and decomposition rates. This study is the first attempt to quantify the fine litter accumulated in the canopy of Central Amazonian forests. We compared the canopy litter accumulation to fine litter-layer on forest floor and to other forests and also investigated which were the mostly accumulated litter omponents. We found that Central Amazonian Rainforest intercepts greater fine litter in the canopy (294 g.m-2) compared to other forest formations with higher winds speed as in a Costa Rican Cloud Forest (170 g.m-2). The mean canopy fine litter accumulated at the end of the dry season was less than a half of that on soil surface (833 g.m-2) and the fine wood component dominates the canopy samplings (174 g.m-2) while leafy component predominate on soil surface litter (353 g.m-2).

  • 关键词:Acesso ao dossel;Liteira de dossel;Queda de liteira;Técnica de escalada por cordas;Camada de liteira do solo
  • 其他关键词:Canopy access;Canopy litter;Litterfall;Rope techniques;Soil litter layer
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